EP1420242A4 - Biological optical measuring instrument - Google Patents

Biological optical measuring instrument

Info

Publication number: EP1420242A4
Authority: EP; European Patent Office
Prior art keywords: measuring instrument; optical measuring; biological optical; biological; instrument
Prior art date: 2001-07-19
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Ceased

Application number

EP02749322A

Other languages

German (de)

French (fr)

Other versions

EP1420242A1 (en

Inventor

Tsuneaki Kawaguchi

Eiji Furuzono

Mikihiro Kaga

Satoshi Onozuka

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Hitachi Healthcare Manufacturing Ltd

Original Assignee

Hitachi Medical Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2001-07-19

Filing date

2002-07-19

Publication date

2009-11-11

2002-07-19 Application filed by Hitachi Medical Corp filed Critical Hitachi Medical Corp

2004-05-19 Publication of EP1420242A1 publication Critical patent/EP1420242A1/en

2009-11-11 Publication of EP1420242A4 publication Critical patent/EP1420242A4/en

Status Ceased legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4795—Scattering, i.e. diffuse reflection spatially resolved investigating of object in scattering medium
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence

EP02749322A 2001-07-19 2002-07-19 Biological optical measuring instrument Ceased EP1420242A4 (en)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
JP2001220093		2001-07-19
JP2001220093		2001-07-19
JP2002090000A JP4112882B2 (en)	2001-07-19	2002-03-27	Biological light measurement device
JP2002900000		2002-03-27
PCT/JP2002/007350 WO2003008944A1 (en)	2001-07-19	2002-07-19	Biological optical measuring instrument

Publications (2)

Publication Number	Publication Date
EP1420242A1 EP1420242A1 (en)	2004-05-19
EP1420242A4 true EP1420242A4 (en)	2009-11-11

Family

ID=26619036

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP02749322A Ceased EP1420242A4 (en)	2001-07-19	2002-07-19	Biological optical measuring instrument

Country Status (5)

Country	Link
US (1)	US7460894B2 (en)
EP (1)	EP1420242A4 (en)
JP (1)	JP4112882B2 (en)
CN (1)	CN1242252C (en)
WO (1)	WO2003008944A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB0613165D0 (en) *	2006-06-28	2006-08-09	Univ Warwick	Real-time infrared measurement and imaging system
US8933405B2 (en) *	2010-03-29	2015-01-13	Inspection Technologies Limited	Inspection apparatus and method
JP5333370B2 (en) *	2010-07-22	2013-11-06	株式会社島津製作所	Gas concentration measuring device
JP5927805B2 (en) *	2011-08-12	2016-06-01	株式会社ニコン	Encoder device and device
JPWO2014208349A1 (en) *	2013-06-27	2017-02-23	国立大学法人電気通信大学	Optical measuring apparatus and optical measuring method
CN104406921B (en) *	2014-12-15	2017-02-08	中国农业大学	Optical detection system and optical detection method
US10698013B2 (en)	2015-11-27	2020-06-30	Samsung Electronics Co., Ltd.	Lock-in amplifier, integrated circuit and portable measurement device including the same
JP6609738B2 (en) *	2016-02-10	2019-11-27	株式会社ＮｅＵ	Biological light measurement device and biological light measurement method
DE102016120785A1 (en) *	2016-11-01	2018-05-03	Krohne Messtechnik Gmbh	Method and measuring device for determining a property of a medium
JP6540670B2 (en) *	2016-11-29	2019-07-10	横河電機株式会社	Signal detection device and optical characteristic measurement device

Citations (3)

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Publication number	Priority date	Publication date	Assignee	Title
US5800348A (en) *	1995-08-31	1998-09-01	Hewlett-Packard Company	Apparatus and method for medical monitoring, in particular pulse oximeter
US5818302A (en) *	1996-02-06	1998-10-06	Nec Corporation	Automatic frequency control oscillation circuit
WO1999040841A1 (en) *	1998-02-11	1999-08-19	Non-Invasive Technology, Inc.	Imaging and characterization of brain tissue

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JPS58140624A (en) *	1982-02-17	1983-08-20	Kokusai Denshin Denwa Co Ltd <Kdd>	Measurement system of extent of variation in optical loss
JPS58150624A (en)	1982-03-04	1983-09-07	Shinmei Sangyo Kk	Pile-driven foundation work
US4796236A (en) *	1986-12-29	1989-01-03	General Electric Company	Architecture for ultrasonic imaging
JPH02257929A (en)	1989-03-09	1990-10-18	Makutaa Kk	Instrument for measuring transmissivity through living organism
JPH0430404A (en)	1990-05-25	1992-02-03	Mitsui Petrochem Ind Ltd	Magnetic laminated body
US5632272A (en) *	1991-03-07	1997-05-27	Masimo Corporation	Signal processing apparatus
JPH0634681A (en)	1992-07-16	1994-02-10	Yokogawa Electric Corp	Fft analyzer
US5348004A (en) *	1993-03-31	1994-09-20	Nellcor Incorporated	Electronic processor for pulse oximeter
US5553615A (en) *	1994-01-31	1996-09-10	Minnesota Mining And Manufacturing Company	Method and apparatus for noninvasive prediction of hematocrit
JPH08278250A (en)	1995-04-07	1996-10-22	Hitachi Ltd	Method and apparatus for detection of photothermal signal
US5919134A (en) *	1997-04-14	1999-07-06	Masimo Corp.	Method and apparatus for demodulating signals in a pulse oximetry system
US6011401A (en) *	1997-05-20	2000-01-04	Raytheon Company	Reference-free direct digital lock-in method and apparatus
US5995858A (en) *	1997-11-07	1999-11-30	Datascope Investment Corp.	Pulse oximeter
JP2000300569A (en)	1999-04-20	2000-10-31	Hitachi Medical Corp	Biological light measuring instrument
JP2000304695A (en)	1999-04-23	2000-11-02	Mitsubishi Heavy Ind Ltd	Measuring apparatus for concentration of sulfur trioxide in exhaust gas
JP2001159601A (en) *	1999-11-30	2001-06-12	Mitsubishi Chemicals Corp	Optical measuring apparatus
US6632402B2 (en) *	2001-01-24	2003-10-14	Ntc Technology Inc.	Oxygen monitoring apparatus

2002
- 2002-03-27 JP JP2002090000A patent/JP4112882B2/en not_active Expired - Lifetime
- 2002-07-19 CN CNB028141474A patent/CN1242252C/en not_active Expired - Fee Related
- 2002-07-19 WO PCT/JP2002/007350 patent/WO2003008944A1/en active Application Filing
- 2002-07-19 US US10/484,004 patent/US7460894B2/en not_active Expired - Fee Related
- 2002-07-19 EP EP02749322A patent/EP1420242A4/en not_active Ceased

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5800348A (en) *	1995-08-31	1998-09-01	Hewlett-Packard Company	Apparatus and method for medical monitoring, in particular pulse oximeter
US5818302A (en) *	1996-02-06	1998-10-06	Nec Corporation	Automatic frequency control oscillation circuit
WO1999040841A1 (en) *	1998-02-11	1999-08-19	Non-Invasive Technology, Inc.	Imaging and characterization of brain tissue

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
BARRAGÁN L.A. ET AL: "A modular, low-cost, digital signal processor-based lock-in card for measuring optical attenuation", REVIEW OF SCIENTIFIC INSTRUMENTS, vol. 72, no. 1, January 2001 (2001-01-01), USA, pages 247 - 251, XP002548412 *
PROBST PIERRE-ALAIN ET AL: "MULTIPLE-CHANNEL DIGITAL LOCK-IN AMPLIFIER WITH PPM RESOLUTION", REVIEW OF SCIENTIFIC INSTRUMENTS, AIP, MELVILLE, NY, US, vol. 65, no. 3, 1 March 1994 (1994-03-01), pages 747 - 750, XP000435201, ISSN: 0034-6748, DOI: 10.1063/1.1145096 *
See also references of WO03008944A1 *

Also Published As

Publication number	Publication date
US7460894B2 (en)	2008-12-02
JP2003098071A (en)	2003-04-03
CN1545618A (en)	2004-11-10
EP1420242A1 (en)	2004-05-19
JP4112882B2 (en)	2008-07-02
CN1242252C (en)	2006-02-15
US20040236195A1 (en)	2004-11-25
WO2003008944A1 (en)	2003-01-30

Legal Events

Date	Code	Title	Description
2004-04-02	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2004-05-19	17P	Request for examination filed	Effective date: 20040218
2004-05-19	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
2009-11-11	A4	Supplementary search report drawn up and despatched	Effective date: 20091014
2009-11-11	RIC1	Information provided on ipc code assigned before grant	Ipc: H03L 7/14 20060101ALI20091006BHEP Ipc: G01N 21/47 20060101AFI20091006BHEP Ipc: A61B 5/00 20060101ALI20091006BHEP
2010-06-23	17Q	First examination report despatched	Effective date: 20100518
2013-05-28	REG	Reference to a national code	Ref country code: DE Ref legal event code: R003
2013-10-04	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED
2013-11-06	18R	Application refused	Effective date: 20130528

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